RT-PCR analysis of IGF-1 (a), Bcl2 (b), SOD (c), CAT (d) in liver tissues of control non diabetic (C), experimentally diabetic (D) and Curcumin (Cur) treated diabetic rats. RT-PCR was performed with Qiagen one-step. The densitometric analysis of the expresses bands (lower columns) was normalized with that of β-actin and then calculated as relative to the control group. Values are expressed as mean ± SEM for 8 rats. *Values are significant different (p < 0.5) compared to control non diabetic group. #Values are significant different (p < 0.5) compared to control diabetic group.